so IIRC I would wake up at 7:20ish and run from 7:30 until about 8:30, then shower + eat stuff I bought at CVS/brought (incl. instant coffee, a godsend) then generally that was enough time to be ready to go by 9 when most lectures/stuff started. I did this 6/7 days per week (in order to average 35 or so miles per week, idk what ur weekly milage is)
dartmouth is really great for running, it just took me a while to figure out where the good running is.
normally I would run either (this)[http://www.mapmyrun.com/routes/fullscreen/263762289/] "safe six" which I think is a really good everyday miledge run – it has a light climb, but it also features nice pretty running and a long downhill – once I figured this one out I ran it with the occasional variation the majority of the time. usually I would make this five by cutting off the bit where you run around the pond at the end and heading straight back to the dorm.
(this)[http://northstar-www.dartmouth.edu/~whamblen/running/?DB_OEM_ID=11600] "turnpike" is one that I liked as well to kind of put variation in it – it has a short climb at the start and end but other than that it's very nice, long and flat for a weekly long run, it's easy to extend it as well which is nice.
there are (other short runs)[http://www.mapmyrun.com/us/hanover-nh/rip-road-route-33233] that you can do, and if you look on mapmyrun you can pretty easily find other runs. however, after trying a lot of them by the end of my 5 weeks I was pretty reliable with just those two and some variations (boring, I know).
if I had to warn against anything it is going down to Mink Brook which you can see at the bottom of the map – the trails there I found were kinda constraining, confusing and not very long as well as extremely hilly. same goes for the golf course (although I did run through there on the way back from the "safe six" a few times, there are a lot of trails branching off of the golf course if you like trail running that you might enjoy).
there is a track (here)[https://www.google.com/maps?num=100&espv=2&q=dartmouth+track&biw=1278&bih=702&um=1&ie=UTF-8&sa=X&ved=0ahUKEwi7wLGGybDMAhVPymMKHSsVCZEQ_AUIBygB] that is open during the summer (at least last year) that I would run on for doing workouts/when I couldn't be bothered to do actual miledge/whatever. that's definitely a pretty safe bet.
honestly dartmouth is a very pretty and nice place to run at least while I was there – some of the most fun I had was when exploring to try and find good routes, so I wouldn't warn against that too much.
please ask me if u have any follow up questions! hope you have some great runs at DDI.
(also if anyone is seeing this and has running recommendations for ann arbor, hit me up)
edit: it seems as if my formatting didn't work but I think you can figure out what I was going for